Blazej, Sylwia et al. published their research in Tetrahedron Letters in 2004 |CAS: 34662-29-8

The Article related to nitrobenzene aryl alkyl sulfone cine substitution, aryl arylalkyl sulfone preparation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Sulfoxides and Sulfones and other aspects.Reference of 3-Chloro-4-nitrobenzonitrile

On April 12, 2004, Blazej, Sylwia; Kwast, Andrzej; Makosza, Mieczyslaw published an article.Reference of 3-Chloro-4-nitrobenzonitrile The title of the article was cine-Substitution of the nitro group in 2,4-disubstituted nitroarenes with carbanions of aryl alkyl sulfones. And the article contained the following:

Rapid protonation of short lived σH adducts, e.g., I, derived from the nucleophilic addition of aryl alkyl sulfones to 2,4-disubstituted nitrobenzenes, resulted in elimination of nitrous acid giving 1,3,5-trisubstituted benzenes, e.g., II, as products of cine-substitution of the nitro group. The experimental process involved the reaction of 3-Chloro-4-nitrobenzonitrile(cas: 34662-29-8).Reference of 3-Chloro-4-nitrobenzonitrile

The Article related to nitrobenzene aryl alkyl sulfone cine substitution, aryl arylalkyl sulfone preparation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Sulfoxides and Sulfones and other aspects.Reference of 3-Chloro-4-nitrobenzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts